html,body,#app,.el-container{
    margin: 0px;
    padding: 0px;
    height: 100%;
}
.el-header {
    background-color: #B3C0D1;
    color: #333;
    text-align: left;
    line-height: 80px;
    font-size: 32px;
    font-weight: bold;

  }
  .el-footer{
    background-color: #B3C0D1;
    color: #333;
    text-align: center;
    line-height: 30px;
    fo
  }
  .el-aside {
    background-color: #D3DCE6;
    color: #333;
    text-align: center;
    line-height: 200px;
  }
  
  .el-main {
    background-color: #E9EEF3;
    color: #333;
    text-align: center;
    line-height: 160px;
  }
  
  body > .el-container {
    margin-bottom: 40px;
  }
  
  .el-container:nth-child(5) .el-aside,
  .el-container:nth-child(6) .el-aside {
    line-height: 260px;
  }
  
  .el-container:nth-child(7) .el-aside {
    line-height: 320px;
  }